/****************************************************************************
 **
 ** Copyright (C) 2005-2006 Trolltech ASA. All rights reserved.
 **
 ** This file is part of the example classes of the Qt Toolkit.
 **
 ** This file may be used under the terms of the GNU General Public
 ** License version 2.0 as published by the Free Software Foundation
 ** and appearing in the file LICENSE.GPL included in the packaging of
 ** this file.  Please review the following information to ensure GNU
 ** General Public Licensing requirements will be met:
 ** http://www.trolltech.com/products/qt/opensource.html
 **
 ** If you are unsure which license is appropriate for your use, please
 ** review the following information:
 ** http://www.trolltech.com/products/qt/licensing.html or contact the
 ** sales department at sales@trolltech.com.
 **
 ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
 ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
 **
 ****************************************************************************/

#ifndef IMAGEVIEWER_H
#define IMAGEVIEWER_H

#include <QMainWindow>
#include <QPrinter>

class QAction;
class QLabel;
class QMenu;
class QScrollArea;
class QScrollBar;

class ImageViewer : public QMainWindow
{
  Q_OBJECT

public:
  ImageViewer();

private slots:
  void open();
  void print();
  void zoomIn();
  void zoomOut();
  void normalSize();
  void fitToWindow();
  void about();

private:
  void createActions();
  void createMenus();
  void updateActions();
  void scaleImage(double factor);
  void adjustScrollBar(QScrollBar *scrollBar, double factor);

  QLabel *imageLabel;
  QScrollArea *scrollArea;
  double scaleFactor;

  QPrinter printer;

  QAction *openAct;
  QAction *printAct;
  QAction *exitAct;
  QAction *zoomInAct;
  QAction *zoomOutAct;
  QAction *normalSizeAct;
  QAction *fitToWindowAct;
  QAction *aboutAct;
  QAction *aboutQtAct;

  QMenu *fileMenu;
  QMenu *viewMenu;
  QMenu *helpMenu;
};

#endif
